I agree with a lot of what you say. Even though I enjoyed the story and game over all there were many elements I thought were out of place or just poorly implemented. All the name dropping you mentioned is something that bothered me quite a bit, the sorceresses do what exactly? A lot of time is spent in the final act to talk about the lodge and its role, not only in fighting the hunt, but also in the political scheming that would follow. The whole mission with Phillipa is a good example of an interesting set up that leads nowhere. She talks to you about wanting to replace Yen and that you should convince her to leave, yet this is never mentioned later or actually leads anywhere or contributes anything to the development of the story. And the whole Triss thing is already covered in an almost 2000 post thread, so I see no reason to go into that anymore than to mention I agree with most of it.
The things that bothered me most however were Eredin and how he and the hunt was handled, and the stupid wolf blizzard thing at the end. The blizzard is something that has been mentioned many times in all the games but it has always been something distant, not something directly affecting the plot. That being said I wouldn't have objected to Ciri wanting to stop it as the main plot, just they way it was implemented. "BTW, I have to go fight this snowstorm now, because YOLO". Ciri always struck me as a person who strives to do the right thing and would be willing to sacrifice her life to save Eredin's world, if it was allowed to happen on her terms. This would have opened a whole new way of solving the conflict with the hunt. CDPR also promised many different endings, I always imagined that meant something similar to act to in witcher 2, where the games final "levels" would be different depending on your choice, and not just some stupid slides at the end, although they are better than nothing.
On an unrelated note, the elf witch lady Ida, or whatever her name was said that Geralt would decide weather or not to start the blizzard or some other shit, I don't remember exactly. But he didn't, Ciri did, you have no influence over it what so ever, that annoyed me.